So pufflings, this is my theory on Hogwarts friendships. Now please realize that of course there are exceptions to everything; this is just what I think tends to happen. Send me feedback to your heart’s content :). (forgive my non-existent graphics skills) --> seems pretty accurate!
Slytherin Challenge Day 2: Do you think the Sorting Hat would put you in Slytherin if you went to Hogwarts?: It definitely would, and if it didn't, I would make it. I am a true Slytherin at heart, Pottermore tells me so.
Slytherin Quotes ...I think "sometimes" could mean they try to hid it or just find it awkward and difficult to show it at times. Like they're really softies that can put on a front of indifference and mystery to protect their sensitive heart...which is calculating but not for selfish gain but self preservation. I'm a Hufflepuff and my BFF @hallowwanderer is a Slytherin and the sweetest person ever. :)